text: from sqlalchemy import (
      Column,
      ForeignKey,
      String,
  )
  
  from .schema_base import SchemaBase
  
  
  class GroupMembership(SchemaBase):
      __tablename__ = "user_group_membership"
      user_name = Column(String(64), ForeignKey("user.name", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
      group_name = Column(String(64), ForeignKey("group.name", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
  